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Tsunamis have been responsible for the loss of almost a half million lives, widespread long lasting destruction, profound environmental effects, and global financial crisis, within the last two decades. The main tsunami properties that determine the size of impact at the shoreline are its wavelength and amplitude in the ocean. Here, we show that it is in principle possible to reduce the amplitude of a tsunami, and redistribute its energy over a larger space, through forcing it to interact with resonating acoustic-gravity waves. In practice, generating the appropriate acoustic-gravity modes introduces serious challenges due to the high energy required for an effective interaction. However, if the findings are extended to realistic tsunami properties and geometries, we might be able to mitigate tsunamis and so save lives and properties. Moreover, such a mitigation technique would allow for the harnessing of the tsunami's energy.

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Lola Gayle, STEAM Register It’s hard to forget the devastation of the 2004 Indian Ocean earthquake and tsunami swarm, which is considered to be one of the deadliest natural disasters in recorded history. In all, this earthquake sent a series of devastating tsunamis barreling i...

Usama Kadri, a mathematician at Cardiff University in the UK, has published new calculations in the open-access journal Heliyon demonstrating the possibility of neutralizing tsunamis with underwater sound waves. While actually implementing such a scheme would be enormously exp...

New research has shown that acoustic-gravity waves could be used to stop tsunamis before hitting the shoreline. According to the lead author, designing the devices would be challenging but it could efficiently save lives.

Sound waves could be used to dissipate the energy of tsunamis and potentially save lives, according to a researcher from Cardiff University. Credit: Dr Usama Kadri In the journal Heliyon, Dr Usama Kadri, from the university’s School of Mathematics, outlines how acoustic-gravit...